What This Shows

This chart shows how tariff rates vary within each HS chapter across different products. Each violin shape uses Kernel Density Estimation (KDE)—a statistical method that smooths individual data points into a continuous distribution curve. The width at any height shows the density (concentration) of products with that tariff rate. A wider section means more products have tariffs in that range. The box plot inside shows quartiles: the middle line is the median, the box spans the 25th to 75th percentiles, and the white line is the mean.

How to Use It

• Compare shapes: Wide violins = high tariff variability across products in that chapter; narrow violins = most products face similar tariffs
• Hover: See exact chapter name and tariff rate at any point on the violin
• Ordering: Chapters sorted by median tariff rate (highest first)
• Interpretation: This shows how the SAME PRODUCT CATEGORY (chapter) is treated differently across its individual products (HS10 codes), NOT across countries. Each violin represents variation within a single chapter's products.

💡 Key Insights

Chapters like textiles show narrow, high-positioned violins—meaning nearly all textile products face uniformly high tariffs (6-15%). Machinery chapters show wide violins spanning 0-25%, indicating some machinery enters duty-free while other items face high tariffs. The KDE smoothing reveals these patterns more clearly than raw histograms would.